Home / 57,140,940.18-78,854,063.82-31,035,644.85

Finding the Fourth Proportional to 57,140,940.18, 78,854,063.82 and 31,035,644.85

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Solution

The fourth proportional to 57,140,940.18, 78,854,063.82 and 31,035,644.85 is: 42,828,954.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140,940.18 : 78,854,063.82 = 31,035,644.85 : x
  2. Step 2: Convert to fraction form
    57,140,940.18/78,854,063.82 = 31,035,644.85/x
  3. Step 3: Cross multiply
    57,140,940.18x = 78,854,063.82 × 31,035,644.85
  4. Step 4: Simplify right side
    57,140,940.18x = 2,447,286,719,696,754
  5. Step 5: Solve for x
    x = 2,447,286,719,696,754/57,140,940.18
  6. Step 6: Final answer
    x = 42,828,954.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.